INTRODUCTION: The dermoid cyst is a cyst of unusual development in the face and more often involves the mouth floor. Most injuries occur in young adults with a slight predilection for males. Lesions in neonatal and children are extremely rare. It manifests as swelling floating asymptomatic and slow-growing and progressive, reaching dimensions. His capsule may contain one or more skin appendages such as sebaceous glands, hair or nails. The treatment is surgical, by enucleation, and its recurrence uncommon. The clinical appearance, histopathology, differential diagnosis and treatment of a case of congenital dermoid cyst, and its recurrence, are discussed by the authors.
dermoid cyst; mouth floor; recurrence
